EP0968497A4 - Audio-kopierverfahren mit veränderlicher kodelänge unter verwendung einer mehrzahl von teilband-bitverteilungsmoden - Google Patents

Audio-kopierverfahren mit veränderlicher kodelänge unter verwendung einer mehrzahl von teilband-bitverteilungsmoden

Info

Publication number: EP0968497A4
Authority: EP; European Patent Office
Prior art keywords: variable length; bit allocation; audio coding; allocation patterns; length audio
Prior art date: 1996-10-07
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP97911610A

Other languages

English (en)

French (fr)

Other versions

EP0968497B1 (de

EP0968497A1 (de

Inventor

Brant Helf

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Polycom LLC

Original Assignee

Picturetel Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1996-10-07

Filing date

1997-10-06

Publication date

2000-02-23

1997-10-06 Application filed by Picturetel Corp filed Critical Picturetel Corp

2000-01-05 Publication of EP0968497A1 publication Critical patent/EP0968497A1/de

2000-02-23 Publication of EP0968497A4 publication Critical patent/EP0968497A4/de

2001-07-11 Application granted granted Critical

2001-07-11 Publication of EP0968497B1 publication Critical patent/EP0968497B1/de

2017-10-06 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)
Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

EP97911610A 1996-10-07 1997-10-06 Audio-kodierverfahren mit veränderlicher kodelänge unter verwendung einer mehrzahl von teilband-bitverteilungsmoden Expired - Lifetime EP0968497B1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US08/726,959 US5924064A (en)	1996-10-07	1996-10-07	Variable length coding using a plurality of region bit allocation patterns
US726959		1996-10-07
PCT/US1997/017770 WO1998015945A1 (en)	1996-10-07	1997-10-06	Variable length audio coding using a plurality of subband bit allocation patterns

Publications (3)

Publication Number	Publication Date
EP0968497A1 EP0968497A1 (de)	2000-01-05
EP0968497A4 true EP0968497A4 (de)	2000-02-23
EP0968497B1 EP0968497B1 (de)	2001-07-11

Family

ID=24920743

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP97911610A Expired - Lifetime EP0968497B1 (de)	1996-10-07	1997-10-06	Audio-kodierverfahren mit veränderlicher kodelänge unter verwendung einer mehrzahl von teilband-bitverteilungsmoden

Country Status (6)

Country	Link
US (1)	US5924064A (de)
EP (1)	EP0968497B1 (de)
JP (1)	JP4237826B2 (de)
CA (1)	CA2267764A1 (de)
DE (1)	DE69705642T2 (de)
WO (1)	WO1998015945A1 (de)

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US6167375A (en) *	1997-03-17	2000-12-26	Kabushiki Kaisha Toshiba	Method for encoding and decoding a speech signal including background noise
KR100335609B1 (ko)	1997-11-20	2002-10-04	삼성전자 주식회사	비트율조절이가능한오디오부호화/복호화방법및장치
CN1146130C (zh) *	1998-05-27	2004-04-14	微软公司	输入信号处理系统的编码器和屏蔽频信号量化噪声方法
HK1045747B (zh) *	1999-04-16	2004-12-31	多尔拜实验特许公司	在音頻編碼中應用增益自適應量化和變長碼
JP4300800B2 (ja) *	2000-12-22	2009-07-22	ソニー株式会社	符号化装置および方法、復号装置および方法、並びに記録媒体
AUPR433901A0 (en) *	2001-04-10	2001-05-17	Lake Technology Limited	High frequency signal construction method
US7240001B2 (en) *	2001-12-14	2007-07-03	Microsoft Corporation	Quality improvement techniques in an audio encoder
EP1472882A1 (de) *	2002-01-22	2004-11-03	Koninklijke Philips Electronics N.V.	Verringerung der bitrate von bereits komprimiertem multimedia
US7099387B2 (en) *	2002-03-22	2006-08-29	Realnetorks, Inc.	Context-adaptive VLC video transform coefficients encoding/decoding methods and apparatuses
US7447631B2 (en) *	2002-06-17	2008-11-04	Dolby Laboratories Licensing Corporation	Audio coding system using spectral hole filling
US20030236674A1 (en) *	2002-06-19	2003-12-25	Henry Raymond C.	Methods and systems for compression of stored audio
CN100511425C (zh) *	2003-11-14	2009-07-08	义隆电子股份有限公司	改善adpcm语音编码步长调节的方法及系统
DE102004009955B3 (de) *	2004-03-01	2005-08-11	Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.	Vorrichtung und Verfahren zum Ermitteln einer Quantisierer-Schrittweite
US7536302B2 (en) *	2004-07-13	2009-05-19	Industrial Technology Research Institute	Method, process and device for coding audio signals
DE102004036154B3 (de) *	2004-07-26	2005-12-22	Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.	Vorrichtung und Verfahren zur robusten Klassifizierung von Audiosignalen sowie Verfahren zu Einrichtung und Betrieb einer Audiosignal-Datenbank sowie Computer-Programm
US7720232B2 (en) *	2004-10-15	2010-05-18	Lifesize Communications, Inc.	Speakerphone
US7970151B2 (en) *	2004-10-15	2011-06-28	Lifesize Communications, Inc.	Hybrid beamforming
US7720236B2 (en) *	2004-10-15	2010-05-18	Lifesize Communications, Inc.	Updating modeling information based on offline calibration experiments
US20060132595A1 (en) *	2004-10-15	2006-06-22	Kenoyer Michael L	Speakerphone supporting video and audio features
US7760887B2 (en) *	2004-10-15	2010-07-20	Lifesize Communications, Inc.	Updating modeling information based on online data gathering
US8116500B2 (en) *	2004-10-15	2012-02-14	Lifesize Communications, Inc.	Microphone orientation and size in a speakerphone
US7903137B2 (en) *	2004-10-15	2011-03-08	Lifesize Communications, Inc.	Videoconferencing echo cancellers
US7826624B2 (en) *	2004-10-15	2010-11-02	Lifesize Communications, Inc.	Speakerphone self calibration and beam forming
US7991167B2 (en) *	2005-04-29	2011-08-02	Lifesize Communications, Inc.	Forming beams with nulls directed at noise sources
US7970150B2 (en) *	2005-04-29	2011-06-28	Lifesize Communications, Inc.	Tracking talkers using virtual broadside scan and directed beams
US7593539B2 (en)	2005-04-29	2009-09-22	Lifesize Communications, Inc.	Microphone and speaker arrangement in speakerphone
EP1989707A2 (de) *	2006-02-24	2008-11-12	France Telecom	Verfahren zur binären kodierung von quantifizierungsindizes einer signalhüllkurve; verfahren zur dekodierung einer signalhüllkurve und entsprechende kodier- und dekodiermodule
US7953595B2 (en) *	2006-10-18	2011-05-31	Polycom, Inc.	Dual-transform coding of audio signals
US7966175B2 (en) *	2006-10-18	2011-06-21	Polycom, Inc.	Fast lattice vector quantization
US7885819B2 (en)	2007-06-29	2011-02-08	Microsoft Corporation	Bitstream syntax for multi-process audio decoding
EP2304719B1 (de)	2008-07-11	2017-07-26	Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.	Audiokodierer, verfahren zum bereitstellen eines audiodatenstroms und computerprogramm
US8386266B2 (en) *	2010-07-01	2013-02-26	Polycom, Inc.	Full-band scalable audio codec
US8428959B2 (en) *	2010-01-29	2013-04-23	Polycom, Inc.	Audio packet loss concealment by transform interpolation
RU2464649C1 (ru)	2011-06-01	2012-10-20	Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд."	Способ обработки звукового сигнала
EP2763137B1 (de) *	2011-09-28	2016-09-14	LG Electronics Inc.	Sprachsignalkodierverfahren und sprachsignaldekodierverfahren
US9111524B2 (en) *	2011-12-20	2015-08-18	Dolby International Ab	Seamless playback of successive multimedia files
CN105103226B (zh) *	2013-01-29	2019-04-16	弗劳恩霍夫应用研究促进协会	低复杂度音调自适应音频信号量化
US10523369B2 (en)	2017-01-09	2019-12-31	Qualcomm Incorporated	Mutual-information based recursive polar code construction
WO2018126496A1 (en)	2017-01-09	2018-07-12	Qualcomm Incorporated	Bit allocation for encoding and decoding

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5109417A (en) *	1989-01-27	1992-04-28	Dolby Laboratories Licensing Corporation	Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
EP0589140A2 (de) *	1992-09-21	1994-03-30	Samsung Electronics Co., Ltd.	Bitzuordnungsverfahren in Teilbandkodierung
EP0718820A2 (de) *	1994-12-19	1996-06-26	Matsushita Electric Industrial Co., Ltd.	Vorrichtung zur Sprachkodierung, zur linear-prädiktiven Analyse und zur Rauschverringerung
EP0720316A1 (de) *	1994-12-30	1996-07-03	Daewoo Electronics Co., Ltd	Adaptive Kodiervorrichtung für Digitaltonsignale und Bitverteilungsverfahren dafür
EP0723257A2 (de) *	1995-01-17	1996-07-24	Nec Corporation	System zur Signalübertragung mittels spektraler Parameter und Vorrichtung zur Kodierung und Dekodierung von Sprachparametern dafür

Family Cites Families (13)

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Publication number	Priority date	Publication date	Assignee	Title
US5142656A (en) *	1989-01-27	1992-08-25	Dolby Laboratories Licensing Corporation	Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5479562A (en) *	1989-01-27	1995-12-26	Dolby Laboratories Licensing Corporation	Method and apparatus for encoding and decoding audio information
US5222189A (en) *	1989-01-27	1993-06-22	Dolby Laboratories Licensing Corporation	Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
US5230038A (en) *	1989-01-27	1993-07-20	Fielder Louis D	Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5185800A (en) *	1989-10-13	1993-02-09	Centre National D'etudes Des Telecommunications	Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion
KR100228688B1 (ko) *	1991-01-08	1999-11-01	쥬더 에드 에이.	다차원 음장용 인코우더/디코우더
US5317672A (en) *	1991-03-05	1994-05-31	Picturetel Corporation	Variable bit rate speech encoder
CA2075156A1 (en) *	1991-08-02	1993-02-03	Kenzo Akagiri	Digital encoder with dynamic quantization bit allocation
JP3134455B2 (ja) *	1992-01-29	2001-02-13	ソニー株式会社	高能率符号化装置及び方法
JP3153933B2 (ja) *	1992-06-16	2001-04-09	ソニー株式会社	データ符号化装置及び方法並びにデータ復号化装置及び方法
JP3123286B2 (ja) *	1993-02-18	2001-01-09	ソニー株式会社	ディジタル信号処理装置又は方法、及び記録媒体
WO1995002240A1 (en) *	1993-07-07	1995-01-19	Picturetel Corporation	A fixed bit rate speech encoder/decoder
US5664057A (en) *	1993-07-07	1997-09-02	Picturetel Corporation	Fixed bit rate speech encoder/decoder

1996
- 1996-10-07 US US08/726,959 patent/US5924064A/en not_active Expired - Lifetime
1997
- 1997-10-06 WO PCT/US1997/017770 patent/WO1998015945A1/en not_active Ceased
- 1997-10-06 JP JP51760498A patent/JP4237826B2/ja not_active Expired - Fee Related
- 1997-10-06 DE DE69705642T patent/DE69705642T2/de not_active Expired - Lifetime
- 1997-10-06 CA CA002267764A patent/CA2267764A1/en not_active Abandoned
- 1997-10-06 EP EP97911610A patent/EP0968497B1/de not_active Expired - Lifetime

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5109417A (en) *	1989-01-27	1992-04-28	Dolby Laboratories Licensing Corporation	Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
EP0589140A2 (de) *	1992-09-21	1994-03-30	Samsung Electronics Co., Ltd.	Bitzuordnungsverfahren in Teilbandkodierung
EP0718820A2 (de) *	1994-12-19	1996-06-26	Matsushita Electric Industrial Co., Ltd.	Vorrichtung zur Sprachkodierung, zur linear-prädiktiven Analyse und zur Rauschverringerung
EP0720316A1 (de) *	1994-12-30	1996-07-03	Daewoo Electronics Co., Ltd	Adaptive Kodiervorrichtung für Digitaltonsignale und Bitverteilungsverfahren dafür
EP0723257A2 (de) *	1995-01-17	1996-07-24	Nec Corporation	System zur Signalübertragung mittels spektraler Parameter und Vorrichtung zur Kodierung und Dekodierung von Sprachparametern dafür

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9815945A1 *

Also Published As

Publication number	Publication date
EP0968497B1 (de)	2001-07-11
DE69705642D1 (de)	2001-08-16
JP2001502073A (ja)	2001-02-13
WO1998015945A1 (en)	1998-04-16
US5924064A (en)	1999-07-13
JP4237826B2 (ja)	2009-03-11
EP0968497A1 (de)	2000-01-05
CA2267764A1 (en)	1998-04-16
DE69705642T2 (de)	2002-05-02

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1999-11-19	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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2001-02-14	RIC1	Information provided on ipc code assigned before grant	Free format text: 7G 10L 19/02 A
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Publication	Publication Date	Title
EP0968497A4 (de)	2000-02-23	Audio-kopierverfahren mit veränderlicher kodelänge unter verwendung einer mehrzahl von teilband-bitverteilungsmoden
DE69634702D1 (de)	2005-06-09	Adaptive kanalzuteilung in einem frequenzmultiplexsystem
GB9623803D0 (en)	1997-01-08	A method of dynamically allocating time slots on a packet data
GB2310113B (en)	2000-04-05	A bi-directional communications network
GB2324933B (en)	1999-04-28	Radio communication apparatus having a plurality of communication functions
IL118371A0 (en)	1996-09-12	A drill guide
GB9515593D0 (en)	1995-09-27	A roll-forged drill bit
DE69431230D1 (de)	2002-10-02	Wahrnehmungsgebundene Mehrkanal-Audiokodierung mit adaptiver Bitverteilung
DE69720536D1 (en)	2003-05-08	Audio a/d-wandler mit frequenzmodulation
EP0703677A3 (de)	1997-06-18	Perzeptueller Teilbandkodierer
GB2307495B (en)	2000-05-03	Downhole equipment
DE69325865D1 (de)	1999-09-09	Bitzuordnungsverfahren in Teilbandkodierung
GB9702543D0 (en)	1997-03-26	A bi-directional communications network
GB9614066D0 (en)	1996-09-04	A shape-changeable sectional penholder
EP0883730A4 (de)	2000-08-02	Bohrgerät
GB9621333D0 (en)	1996-11-27	A method of allocating channels
PL326764A1 (en)	1998-10-26	Drilling bit
GB2303017B (en)	1999-06-09	Improved audio equipment
GB2301788B (en)	1998-08-12	Drill bit
TW322809U (en)	1997-12-11	Core drill bit
KR100204574B1 (en)	1999-06-15	Discrete wavelet converter
GB9402634D0 (en)	1994-04-06	Drill coding
GB9610126D0 (en)	1996-07-24	Apparatus to manufacture a casing
KR970007511U (ko)	1997-02-21	복수개의 비트 스트림(Bit Stream) 채널을 갖는 송신장치
GB9610958D0 (en)	1996-07-31	Sound encoding